Vilon (Bioregulator)

Vilon is a synthetic dipeptide (Lys-Glu) from the Khavinson class of bioregulatory peptides developed at the Saint Petersburg Institute of Bioregulation and Gerontology. It is the shortest bioregulatory peptide in the Khavinson system, consisting of only two amino acids. Vilon is designed to target immune (thymic) tissue through proposed peptide-DNA interactions that modulate gene expression in thymocytes and immune cells. As a dipeptide, Vilon tests the minimal boundary of the Khavinson hypothesis — whether even a two-amino acid sequence can carry meaningful tissue-targeting information through its charge distribution and conformational properties. Vilon has been investigated in Russian biogerontology research examining thymic involution, immune senescence, and age-related changes in T-cell maturation.

Vilon has been investigated for its proposed interactions with gene regulatory regions in immune cells, consistent with the Khavinson bioregulatory dipeptide model. Despite being only two amino acids in length, the Lys-Glu sequence carries a distinctive charge pattern (positive-negative) that may influence electrostatic interactions with DNA. Researchers from the Saint Petersburg group observed that Vilon treatment in lymphocyte culture models was associated with changes in proliferation markers and cytokine expression profiles. Studies suggest that Vilon may influence thymic epithelial cell function, modulating the thymic microenvironment that supports T-cell maturation. In aging models, researchers observed effects on immune competence markers and thymocyte differentiation indices. As the smallest Khavinson bioregulator, Vilon provides a test case for the minimum peptide length required for tissue-specific gene regulatory activity in the bioregulation model.

Immune Modulation

Khavinson et al. (2005) investigated Vilon in lymphocyte culture models and observed changes in proliferation and differentiation markers, providing evidence for dipeptide bioregulatory activity [1].

Bioregulatory Dipeptides

Khavinson VK (2002) described the theoretical framework for bioregulatory peptides including dipeptides like Vilon, presenting the minimal peptide length hypothesis [2].

Thymic Biology

Khavinson et al. (2010) reviewed the effects of bioregulatory peptides on thymic function and immune senescence, including dipeptide studies with Vilon [3].